From: Austin Ziegler <halostatue@...>
Date: 2006-08-15T23:46:58+09:00
Subject: Re: Question about the threequal operator .===

On 8/15/06, Robert Klemme <shortcutter@googlemail.com> wrote:
> On 15.08.2006 10:15, John wrote:
> > Hi
> >
> > I'm a newbie on ruby and i have some questions :
> > *What is special to the threequals operator when it comes to when
> > clause ?
> > object === other_object
>
> It's simply the fact that it's invoked.  "when" doesn't invoke ==, eql?
> or equal? but ===.

And it does it differently than might be expected.

  case object
  when other_object
  end

is the same as other_object === object, not the other way around.

-austin
-- 
Austin Ziegler * halostatue@gmail.com * http://www.halostatue.ca/
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